best phal options for low light house

[phalnoob]

Hey all im new here and really overwhelmed about lighting for plants!
I was gifted a mini phal and i just love it so i bought 3 big ones, all of different colours.
My homes living room is north facing so hardly any sun and im in the uk so hardly any full stop haha! My room is also north facing which has led me to want lighting to supplement my phals iv got my mini on my bedside table and the desk lamp is an led 3000k bulb which wont do much i suppose. They are doing well tho one has brown round the edges of the leaves but they cant get burnt on thise windowsills as no sun that side.

I was thinking of lighting a wooden shelf unit in my room so that they can spend the morning (bit of sun before it moves round) then pop them there for the rest of the day. Would a t8 for fish tanks be ok, around 4500k, 1 on each shelf with 2 phals under each.

Thanks for reading hopefully can get them sorted soon on a budget lol!

Cheers
Rico